BOSTON – A former Plymouth County prosecutor says he could call sitting judges, current and former district attorneys and defense lawyers as witnesses if his lawsuit against his former boss, Plymouth County District Attorney Timothy Cruz, goes to trial.

A disclosure filed by John Bradley last week in U.S. District Court lists 42 people who he says could testify to his skill as a prosecutor, Cruz’s alleged mishandling of his office and the treatment prosecutors have faced when they refused to support Cruz’s campaign for re-election. Bradley has accused Cruz and his top staff of firing him because he refused to donate to the campaign and had raised questions about Cruz’s handling of witnesses.

Attorneys hired to represent Cruz’s office have repeatedly denied Bradley’s claims, saying the prosecutor was an unhappy employee who was fired for his insubordination, not because he refused to support the district attorney’s re-election. The two sides agreed in May to try to settle their dispute through mediation, but a magistrate judge determined after a meeting earlier this month that they were unlikely to reach an agreement and should prepare for trial instead.

The witnesses that could be called to testify at that trial include Suffolk County District Attorney Daniel Conley, former Plymouth County District Attorney Michael Sullivan, and Judges Richard Chin and Frank Gaziano, according to the disclosure filed by Bradley last week. It also includes defense lawyers Bradley has faced in the courtroom.

Asked why the judges and district attorneys would be called to testify, Robert Sinsheimer, an attorney hired by Bradley to represent him in the lawsuit, said only that his client “is an extremely talented prosecutor and we would definitely call as witnesses people who know that.”

Bradley was fired from Cruz’s office in 2012 and has since taken a job prosecuting homicide cases for the Worcester County district attorney’s office.

Neal Simpson may be reached at nesimpson@ledger.com or follow on Twitter @NSimpson_Ledger.